By Wes Little, CNN

Sheetal Shah, an official with the Hindu American Foundation, hears a lot about the physical practice of yoga these days - but not much about its religious roots.

So her group, which seeks to provide what it calls "a progressive voice for American Hindus," recently mounted a "take back yoga" campaign, including appearances at conferences and attempts to raise media awareness of the practice's Hindu origins.

For Shah, who is the Hindu American Foundation's senior director, yoga is primarily a moral and spiritual philosophy, a fact she says has been lost as the popularity of physical yoga has boomed in the West. "There has been a conscious de-linking between Hinduism and yoga," in the United States and elsewhere, she says.

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